Nathan Giesselman advises public and private clients in a variety of internal and third-party transactions, with a particular focus on international planning for multinational clients; cross-border acquisition, disposition and restructuring transactions for both U.S. and international clients; and tax planning for private equity and entertainment industry clients.


Mr. Giesselman is recognized annually in Chambers USA, in which client commentators in the 2020 edition described him as “terrific, very knowledgeable and solutions-oriented.” He has been included in Euromoney’s Rising Stars Expert Guide and Law360 also has named him several times as one of the publication’s Rising Stars on the strength of his sophisticated work on behalf of his clients. Earlier in his career, the Daily Journal selected him as one of its Top 40 Under 40, an annual list of young California attorneys who are engaging in impactful, high-level work. He was a key member of the deal team recognized by the Daily Journal with a 2018 California Lawyer Attorney of the Year (CLAY) award for innovative work on behalf of Intel Corporation in its acquisition of Mobileye N.V.

Significant representations include:

  • Intel Corporation in its:
    • $15.3 billion acquisition of Mobileye, N.V.
    • $4.2 billion joint venture with TPG Capital, L.P. to form the independent cybersecurity company McAfee; and
    • sale of its Wind River subsidiary to TPG;
  • E.I. du Pont de Nemours and Company in its:
    • $130 billion merger-of-equals with The Dow Chemical Company. This deal was awarded the Americas M&A Deal of the Year at the 2016 International Tax Review Americas Awards;
    • sale of a portion of its crop protection business to FMC Corporation;
    • $7.4 billion acquisition of Danisco;
    • $4.9 billion sale of DuPont Performance Coatings; its spin-off of The Chemours Company and various debt offerings;
    • spin-off of its Agricultural Division (now Corteva, Inc.) and the debut of DuPont as a standalone company; and
    • spin-off of its Materials Science Division, which will be named Dow;
  • Broadcom Corporation in its $37 billion acquisition by Avago Technologies Limited. Mr. Giesselman was a key member of the team recognized by the Daily Journal with a 2016 California Lawyer Attorneys of the Year award for innovative work on this deal, which also was named the Americas Technology and Telecom Tax Deal of the Year at the 2016 International Tax Review Americas Awards;
  • Theravance Inc. in the separation of the company into two publicly traded companies, Theravance and Theravance Biopharma, and Theravance Biopharma in a $450 million royalty monetization private placement;
  • Hewlett Packard Enterprise Company in the spin-off of its enterprise services business and its merger with Computer Sciences Corp., as well as the spin-off of its software business and its combination with Micro Focus International plc;
  • Trinity Industries, Inc. in its spin-off of Arcosa, Inc.;
  • Cavium, Inc. in its $1.4 billion acquisition of QLogic Corp. and in its $6 billion acquisition by Marvell Technology Group Ltd.;
  • United Talent Agency in its:
    • sale of minority stakes in the agency to PSP and Investcorp;
    • acquisition of two esports talent and marketing agencies;
    • acquisition of DBA Media;
    • acquisition of electronic music-focused Circle Talent Agency;
    • acquisition of a stake in Core Media Group; and
    • acquisitions of AGM Securities and Greater Talent Network;
  • Hewlett-Packard Co. in the tax aspects of its separation into two companies, Hewlett Packard Enterprise Company and HP Inc.;
  • Ripple Labs Inc. (as co-counsel) in its strategic partnership with MoneyGram International, Inc.;
  • Hexaware Technologies Limited in its $182 million acquisition of Mobiquity Inc.;
  • Visa Inc. in the tax aspects of its $23.4 billion acquisition and integration of Visa Europe Limited; its $1.4 billion sale of a 51 percent stake in Prisma Medios de Pago; and its pending $5.3 billion acquisition of Plaid Inc.;
  • Pfizer Inc. in its integration of Wyeth and its initial public offering of Zoetis Inc.;
  • Silver Lake Partners in its acquisition of a majority stake in ServiceMax, Inc. from GE Digital LLC;
  • Total Produce plc in its $300 million acquisition of a 45 percent stake in Dole Food Company, Inc. from David H. Murdock;
  • Westfield Corporation in its $25 billion acquisition by Unibail-Rodamco SE and in the separation of its OneMarket business line;
  • Activision Blizzard, Inc. in its $5.8 billion repurchase of shares from Vivendi;
  • Nokia Corporation in the $7.2 billion sale of its devices and services business to Microsoft Corporation;
  • The Sage Group plc in its $850 million acquisition of Intacct Corporation;
  • Revlon, Inc. in its $660 million acquisition of The Colomer Group;
  • Permira Funds in its $1.1 billion sale of Renaissance Learning Inc.;
  • SanDisk Corporation in its $19 billion acquisition by Western Digital Corporation and its $1.1 billion acquisition of Fusion-io;
  • BTG Pactual in a 2010 $1.8 billion investment by various sovereign wealth and private equity funds, its 2012 initial public offering and various debt offerings;
  • Lattice Semiconductor Corporation in its $600 million acquisition of Silicon Image, Inc.;
  • United Online, Inc. in its spin-off of FTD Companies, Inc.;
  • Och-Ziff Capital Management Group, LLC in its restructuring and initial public offering, and 2011 follow-on offering; and
  • repatriation and integration planning for various Fortune 100 companies.



  • J.D., Columbia Law School, 2006 (Kent Scholar)
  • B.S., State University of New York, Albany, 2003 (summa cum laude)


  • California
  • New York